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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-07-10 21:08:07 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-07-10 21:14:48 +0200 |
| commit | d37a369790774af66a4aee61a188384d21b17a43 (patch) | |
| tree | 079cbd40c16d49c2813e8afe93e811aac668c451 /tools | |
| parent | kprobes: Ensure that jprobe probepoints are at function entry (diff) | |
| download | linux-d37a369790774af66a4aee61a188384d21b17a43.tar.xz linux-d37a369790774af66a4aee61a188384d21b17a43.zip | |
perf evsel: Fix attr.exclude_kernel setting for default cycles:p
To allow probing the max attr.precise_ip setting for non-root users
we unconditionally set attr.exclude_kernel, which makes the detection
work but should be done only for !root, fix it.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: 97365e81366f ("perf evsel: Set attr.exclude_kernel when probing max attr.precise_ip")
Link: http://lkml.kernel.org/n/tip-bl6bbxzxloonzvm4nvt7oqgj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/evsel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 87b431886670..f2a1876d268e 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -273,7 +273,7 @@ struct perf_evsel *perf_evsel__new_cycles(void) struct perf_event_attr attr = { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES, - .exclude_kernel = 1, + .exclude_kernel = geteuid() != 0, }; struct perf_evsel *evsel; |